Yes you can chain them together. But the fill time is going to be long. How are you going to drain them, draining that way may be a problem. If your throwing pumps over the side your better off filling them one at a time, IMO.

I have a 400lbs sac on either side of my dog house. I had everything plumbed in and ended up ripping it all out. Throwing the pumps overboard was way simpler and faster. Plus when they weren't needed I didn't have any hoses in the way.

I have a 400lbs sac on either side of my dog house. I had everything plumbed in and ended up ripping it all out. Throwing the pumps overboard was way simpler and faster. Plus when they weren't needed I didn't have any hoses in the way.

In my old nautique I plumbed in a system using a single Jabsco Ballast Puppy. Its reversible so would fill and drain the sacs. I ran the hose then used pvc ball valves to control which bags to fill or drain. It actually worked great and would fill roughly 2500 lbs in about 10 minutes if I remember right. Took some time to set it all up but was a great off-season project